try a 0.5mm, lets you print 0.4mm layers without hassle.

With the printbite most things will need a heated bed. My standard is 50c for pla.
But some will print on a cold bed.

Flexibles don't need heated - but since I fettled the creator's extruder that's now my goto printer for flexibles, leaving alexa for all other single extrusions. I think I do use heated for colorfabbs wood filament (brilliant stuff) but pretty sure you could get away with printing it on a cold bed.
It does stick like a limpet.

And should you ever get any, under no circumstances attempt to prnt mymat nylon on printbite. Talk about a permament bond lol